Bible Encyclopedias
Solar Cycle

The Nuttall Encyclopedia

A period of 28 years, within which the first day of the year passes successively through the same sequence of week-days.

Bibliography Information
Wood, James, ed. Entry for 'Solar Cycle'. The Nuttall Encyclopedia. https://www.studylight.org/​encyclopedias/​eng/​nut/​s/solar-cycle.html. Frederick Warne & Co Ltd. London. 1900.